* @param providerName the name of the provider to reference for cryptographic primitives.
* @return the current builder.
*/
public JcePublicKeyDataDecryptorFactoryBuilder setProvider(String providerName)
{
this.helper = new OperatorHelper(new NamedJcaJceHelper(providerName));
keyConverter.setProvider(providerName);
this.contentHelper = helper;
return this;
}